diff options
Diffstat (limited to 'sound/soc/tegra/tegra210_mixer.c')
| -rw-r--r-- | sound/soc/tegra/tegra210_mixer.c | 686 |
1 files changed, 686 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_mixer.c b/sound/soc/tegra/tegra210_mixer.c new file mode 100644 index 000000000..16e679a95 --- /dev/null +++ b/sound/soc/tegra/tegra210_mixer.c @@ -0,0 +1,686 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// tegra210_mixer.c - Tegra210 MIXER driver +// +// Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved. + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra210_mixer.h" +#include "tegra_cif.h" + +#define MIXER_REG(reg, id) ((reg) + ((id) * TEGRA210_MIXER_REG_STRIDE)) +#define MIXER_REG_BASE(reg) ((reg) % TEGRA210_MIXER_REG_STRIDE) + +#define MIXER_GAIN_CFG_RAM_ADDR(id) \ + (TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0 + \ + ((id) * TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE)) + +#define MIXER_RX_REG_DEFAULTS(id) \ + { MIXER_REG(TEGRA210_MIXER_RX1_CIF_CTRL, id), 0x00007700}, \ + { MIXER_REG(TEGRA210_MIXER_RX1_CTRL, id), 0x00010823}, \ + { MIXER_REG(TEGRA210_MIXER_RX1_PEAK_CTRL, id), 0x000012c0} + +#define MIXER_TX_REG_DEFAULTS(id) \ + { MIXER_REG(TEGRA210_MIXER_TX1_INT_MASK, (id)), 0x00000001}, \ + { MIXER_REG(TEGRA210_MIXER_TX1_CIF_CTRL, (id)), 0x00007700} + +#define REG_DURATION_PARAM(reg, i) ((reg) + NUM_GAIN_POLY_COEFFS + 1 + (i)) + +static const struct reg_default tegra210_mixer_reg_defaults[] = { + /* Inputs */ + MIXER_RX_REG_DEFAULTS(0), + MIXER_RX_REG_DEFAULTS(1), + MIXER_RX_REG_DEFAULTS(2), + MIXER_RX_REG_DEFAULTS(3), + MIXER_RX_REG_DEFAULTS(4), + MIXER_RX_REG_DEFAULTS(5), + MIXER_RX_REG_DEFAULTS(6), + MIXER_RX_REG_DEFAULTS(7), + MIXER_RX_REG_DEFAULTS(8), + MIXER_RX_REG_DEFAULTS(9), + /* Outputs */ + MIXER_TX_REG_DEFAULTS(0), + MIXER_TX_REG_DEFAULTS(1), + MIXER_TX_REG_DEFAULTS(2), + MIXER_TX_REG_DEFAULTS(3), + MIXER_TX_REG_DEFAULTS(4), + + { TEGRA210_MIXER_CG, 0x00000001}, + { TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, 0x00004000}, + { TEGRA210_MIXER_PEAKM_RAM_CTRL, 0x00004000}, + { TEGRA210_MIXER_ENABLE, 0x1 }, +}; + +/* Default gain parameters */ +static const struct tegra210_mixer_gain_params gain_params = { + /* Polynomial coefficients */ + { 0, 0, 0, 0, 0, 0, 0, 0x1000000, 0 }, + /* Gain value */ + 0x10000, + /* Duration Parameters */ + { 0, 0, 0x400, 0x8000000 }, +}; + +static int __maybe_unused tegra210_mixer_runtime_suspend(struct device *dev) +{ + struct tegra210_mixer *mixer = dev_get_drvdata(dev); + + regcache_cache_only(mixer->regmap, true); + regcache_mark_dirty(mixer->regmap); + + return 0; +} + +static int __maybe_unused tegra210_mixer_runtime_resume(struct device *dev) +{ + struct tegra210_mixer *mixer = dev_get_drvdata(dev); + + regcache_cache_only(mixer->regmap, false); + regcache_sync(mixer->regmap); + + return 0; +} + +static int tegra210_mixer_write_ram(struct tegra210_mixer *mixer, + unsigned int addr, + unsigned int coef) +{ + unsigned int reg, val; + int err; + + /* Check if busy */ + err = regmap_read_poll_timeout(mixer->regmap, + TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, + val, !(val & 0x80000000), 10, 10000); + if (err < 0) + return err; + + reg = (addr << TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_SHIFT) & + TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_MASK; + reg |= TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_INIT_EN; + reg |= TEGRA210_MIXER_GAIN_CFG_RAM_RW_WRITE; + reg |= TEGRA210_MIXER_GAIN_CFG_RAM_SEQ_ACCESS_EN; + + regmap_write(mixer->regmap, + TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, + reg); + regmap_write(mixer->regmap, + TEGRA210_MIXER_GAIN_CFG_RAM_DATA, + coef); + + return 0; +} + +static int tegra210_mixer_configure_gain(struct snd_soc_component *cmpnt, + unsigned int id, bool instant_gain) +{ + struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt); + unsigned int reg = MIXER_GAIN_CFG_RAM_ADDR(id); + int err, i; + + pm_runtime_get_sync(cmpnt->dev); + + /* Write default gain poly coefficients */ + for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++) { + err = tegra210_mixer_write_ram(mixer, reg + i, + gain_params.poly_coeff[i]); + + if (err < 0) + goto rpm_put; + } + + /* Write stored gain value */ + err = tegra210_mixer_write_ram(mixer, reg + NUM_GAIN_POLY_COEFFS, + mixer->gain_value[id]); + if (err < 0) + goto rpm_put; + + /* Write duration parameters */ + for (i = 0; i < NUM_DURATION_PARMS; i++) { + int val; + + if (instant_gain) + val = 1; + else + val = gain_params.duration[i]; + + err = tegra210_mixer_write_ram(mixer, + REG_DURATION_PARAM(reg, i), + val); + if (err < 0) + goto rpm_put; + } + + /* Trigger to apply gain configurations */ + err = tegra210_mixer_write_ram(mixer, reg + REG_CFG_DONE_TRIGGER, + VAL_CFG_DONE_TRIGGER); + +rpm_put: + pm_runtime_put(cmpnt->dev); + + return err; +} + +static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt); + unsigned int reg = mc->reg; + unsigned int i; + + i = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) / + TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE; + + ucontrol->value.integer.value[0] = mixer->gain_value[i]; + + return 0; +} + +static int tegra210_mixer_apply_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + bool instant_gain) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt); + unsigned int reg = mc->reg, id; + int err; + + /* Save gain value for specific MIXER input */ + id = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) / + TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE; + + if (mixer->gain_value[id] == ucontrol->value.integer.value[0]) + return 0; + + mixer->gain_value[id] = ucontrol->value.integer.value[0]; + + err = tegra210_mixer_configure_gain(cmpnt, id, instant_gain); + if (err) { + dev_err(cmpnt->dev, "Failed to apply gain\n"); + return err; + } + + return 1; +} + +static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return tegra210_mixer_apply_gain(kcontrol, ucontrol, false); +} + +static int tegra210_mixer_put_instant_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return tegra210_mixer_apply_gain(kcontrol, ucontrol, true); +} + +static int tegra210_mixer_set_audio_cif(struct tegra210_mixer *mixer, + struct snd_pcm_hw_params *params, + unsigned int reg, + unsigned int id) +{ + unsigned int channels, audio_bits; + struct tegra_cif_conf cif_conf; + + memset(&cif_conf, 0, sizeof(struct tegra_cif_conf)); + + channels = params_channels(params); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + audio_bits = TEGRA_ACIF_BITS_16; + break; + case SNDRV_PCM_FORMAT_S32_LE: + audio_bits = TEGRA_ACIF_BITS_32; + break; + default: + return -EINVAL; + } + + cif_conf.audio_ch = channels; + cif_conf.client_ch = channels; + cif_conf.audio_bits = audio_bits; + cif_conf.client_bits = audio_bits; + + tegra_set_cif(mixer->regmap, + reg + (id * TEGRA210_MIXER_REG_STRIDE), + &cif_conf); + + return 0; +} + +static int tegra210_mixer_in_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai); + int err; + + err = tegra210_mixer_set_audio_cif(mixer, params, + TEGRA210_MIXER_RX1_CIF_CTRL, + dai->id); + if (err < 0) + return err; + + return tegra210_mixer_configure_gain(dai->component, dai->id, false); +} + +static int tegra210_mixer_out_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai); + + return tegra210_mixer_set_audio_cif(mixer, params, + TEGRA210_MIXER_TX1_CIF_CTRL, + dai->id - TEGRA210_MIXER_RX_MAX); +} + +static const struct snd_soc_dai_ops tegra210_mixer_out_dai_ops = { + .hw_params = tegra210_mixer_out_hw_params, +}; + +static const struct snd_soc_dai_ops tegra210_mixer_in_dai_ops = { + .hw_params = tegra210_mixer_in_hw_params, +}; + +#define IN_DAI(id) \ + { \ + .name = "MIXER-RX-CIF"#id, \ + .playback = { \ + .stream_name = "RX" #id "-CIF-Playback",\ + .channels_min = 1, \ + .channels_max = 8, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .capture = { \ + .stream_name = "RX" #id "-CIF-Capture", \ + .channels_min = 1, \ + .channels_max = 8, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .ops = &tegra210_mixer_in_dai_ops, \ + } + +#define OUT_DAI(id) \ + { \ + .name = "MIXER-TX-CIF" #id, \ + .playback = { \ + .stream_name = "TX" #id "-CIF-Playback",\ + .channels_min = 1, \ + .channels_max = 8, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .capture = { \ + .stream_name = "TX" #id "-CIF-Capture", \ + .channels_min = 1, \ + .channels_max = 8, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .ops = &tegra210_mixer_out_dai_ops, \ + } + +static struct snd_soc_dai_driver tegra210_mixer_dais[] = { + /* Mixer Input */ + IN_DAI(1), + IN_DAI(2), + IN_DAI(3), + IN_DAI(4), + IN_DAI(5), + IN_DAI(6), + IN_DAI(7), + IN_DAI(8), + IN_DAI(9), + IN_DAI(10), + + /* Mixer Output */ + OUT_DAI(1), + OUT_DAI(2), + OUT_DAI(3), + OUT_DAI(4), + OUT_DAI(5), +}; + +#define ADDER_CTRL_DECL(name, reg) \ + static const struct snd_kcontrol_new name[] = { \ + SOC_DAPM_SINGLE("RX1", reg, 0, 1, 0), \ + SOC_DAPM_SINGLE("RX2", reg, 1, 1, 0), \ + SOC_DAPM_SINGLE("RX3", reg, 2, 1, 0), \ + SOC_DAPM_SINGLE("RX4", reg, 3, 1, 0), \ + SOC_DAPM_SINGLE("RX5", reg, 4, 1, 0), \ + SOC_DAPM_SINGLE("RX6", reg, 5, 1, 0), \ + SOC_DAPM_SINGLE("RX7", reg, 6, 1, 0), \ + SOC_DAPM_SINGLE("RX8", reg, 7, 1, 0), \ + SOC_DAPM_SINGLE("RX9", reg, 8, 1, 0), \ + SOC_DAPM_SINGLE("RX10", reg, 9, 1, 0), \ + } + +ADDER_CTRL_DECL(adder1, TEGRA210_MIXER_TX1_ADDER_CONFIG); +ADDER_CTRL_DECL(adder2, TEGRA210_MIXER_TX2_ADDER_CONFIG); +ADDER_CTRL_DECL(adder3, TEGRA210_MIXER_TX3_ADDER_CONFIG); +ADDER_CTRL_DECL(adder4, TEGRA210_MIXER_TX4_ADDER_CONFIG); +ADDER_CTRL_DECL(adder5, TEGRA210_MIXER_TX5_ADDER_CONFIG); + +#define GAIN_CTRL(id) \ + SOC_SINGLE_EXT("RX" #id " Gain Volume", \ + MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \ + 0x20000, 0, tegra210_mixer_get_gain, \ + tegra210_mixer_put_gain), \ + SOC_SINGLE_EXT("RX" #id " Instant Gain Volume", \ + MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \ + 0x20000, 0, tegra210_mixer_get_gain, \ + tegra210_mixer_put_instant_gain), + +/* Volume controls for all MIXER inputs */ +static const struct snd_kcontrol_new tegra210_mixer_gain_ctls[] = { + GAIN_CTRL(1) + GAIN_CTRL(2) + GAIN_CTRL(3) + GAIN_CTRL(4) + GAIN_CTRL(5) + GAIN_CTRL(6) + GAIN_CTRL(7) + GAIN_CTRL(8) + GAIN_CTRL(9) + GAIN_CTRL(10) +}; + +static const struct snd_soc_dapm_widget tegra210_mixer_widgets[] = { + SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX5", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX6", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX7", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX8", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX9", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("RX10", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX1", NULL, 0, TEGRA210_MIXER_TX1_ENABLE, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX2", NULL, 0, TEGRA210_MIXER_TX2_ENABLE, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX3", NULL, 0, TEGRA210_MIXER_TX3_ENABLE, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX4", NULL, 0, TEGRA210_MIXER_TX4_ENABLE, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX5", NULL, 0, TEGRA210_MIXER_TX5_ENABLE, 0, 0), + SND_SOC_DAPM_MIXER("Adder1", SND_SOC_NOPM, 1, 0, adder1, + ARRAY_SIZE(adder1)), + SND_SOC_DAPM_MIXER("Adder2", SND_SOC_NOPM, 1, 0, adder2, + ARRAY_SIZE(adder2)), + SND_SOC_DAPM_MIXER("Adder3", SND_SOC_NOPM, 1, 0, adder3, + ARRAY_SIZE(adder3)), + SND_SOC_DAPM_MIXER("Adder4", SND_SOC_NOPM, 1, 0, adder4, + ARRAY_SIZE(adder4)), + SND_SOC_DAPM_MIXER("Adder5", SND_SOC_NOPM, 1, 0, adder5, + ARRAY_SIZE(adder5)), +}; + +#define RX_ROUTES(id, sname) \ + { "RX" #id " XBAR-" sname, NULL, "RX" #id " XBAR-TX" }, \ + { "RX" #id "-CIF-" sname, NULL, "RX" #id " XBAR-" sname }, \ + { "RX" #id, NULL, "RX" #id "-CIF-" sname } + +#define MIXER_RX_ROUTES(id) \ + RX_ROUTES(id, "Playback"), \ + RX_ROUTES(id, "Capture") + +#define ADDER_ROUTES(id, sname) \ + { "Adder" #id, "RX1", "RX1" }, \ + { "Adder" #id, "RX2", "RX2" }, \ + { "Adder" #id, "RX3", "RX3" }, \ + { "Adder" #id, "RX4", "RX4" }, \ + { "Adder" #id, "RX5", "RX5" }, \ + { "Adder" #id, "RX6", "RX6" }, \ + { "Adder" #id, "RX7", "RX7" }, \ + { "Adder" #id, "RX8", "RX8" }, \ + { "Adder" #id, "RX9", "RX9" }, \ + { "Adder" #id, "RX10", "RX10" }, \ + { "TX" #id, NULL, "Adder" #id }, \ + { "TX" #id "-CIF-" sname, NULL, "TX" #id }, \ + { "TX" #id " XBAR-" sname, NULL, "TX" #id "-CIF-" sname }, \ + { "TX" #id " XBAR-RX", NULL, "TX" #id " XBAR-" sname } \ + +#define TX_ROUTES(id, sname) \ + ADDER_ROUTES(1, sname), \ + ADDER_ROUTES(2, sname), \ + ADDER_ROUTES(3, sname), \ + ADDER_ROUTES(4, sname), \ + ADDER_ROUTES(5, sname) + +#define MIXER_TX_ROUTES(id) \ + TX_ROUTES(id, "Playback"), \ + TX_ROUTES(id, "Capture") + +static const struct snd_soc_dapm_route tegra210_mixer_routes[] = { + /* Input */ + MIXER_RX_ROUTES(1), + MIXER_RX_ROUTES(2), + MIXER_RX_ROUTES(3), + MIXER_RX_ROUTES(4), + MIXER_RX_ROUTES(5), + MIXER_RX_ROUTES(6), + MIXER_RX_ROUTES(7), + MIXER_RX_ROUTES(8), + MIXER_RX_ROUTES(9), + MIXER_RX_ROUTES(10), + /* Output */ + MIXER_TX_ROUTES(1), + MIXER_TX_ROUTES(2), + MIXER_TX_ROUTES(3), + MIXER_TX_ROUTES(4), + MIXER_TX_ROUTES(5), +}; + +static const struct snd_soc_component_driver tegra210_mixer_cmpnt = { + .dapm_widgets = tegra210_mixer_widgets, + .num_dapm_widgets = ARRAY_SIZE(tegra210_mixer_widgets), + .dapm_routes = tegra210_mixer_routes, + .num_dapm_routes = ARRAY_SIZE(tegra210_mixer_routes), + .controls = tegra210_mixer_gain_ctls, + .num_controls = ARRAY_SIZE(tegra210_mixer_gain_ctls), +}; + +static bool tegra210_mixer_wr_reg(struct device *dev, + unsigned int reg) +{ + if (reg < TEGRA210_MIXER_RX_LIMIT) + reg = MIXER_REG_BASE(reg); + else if (reg < TEGRA210_MIXER_TX_LIMIT) + reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE; + + switch (reg) { + case TEGRA210_MIXER_RX1_SOFT_RESET: + case TEGRA210_MIXER_RX1_CIF_CTRL ... TEGRA210_MIXER_RX1_PEAK_CTRL: + + case TEGRA210_MIXER_TX1_ENABLE: + case TEGRA210_MIXER_TX1_SOFT_RESET: + case TEGRA210_MIXER_TX1_INT_MASK ... TEGRA210_MIXER_TX1_ADDER_CONFIG: + + case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CG: + case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL ... TEGRA210_MIXER_CTRL: + return true; + default: + return false; + } +} + +static bool tegra210_mixer_rd_reg(struct device *dev, + unsigned int reg) +{ + if (reg < TEGRA210_MIXER_RX_LIMIT) + reg = MIXER_REG_BASE(reg); + else if (reg < TEGRA210_MIXER_TX_LIMIT) + reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE; + + switch (reg) { + case TEGRA210_MIXER_RX1_SOFT_RESET ... TEGRA210_MIXER_RX1_SAMPLE_COUNT: + case TEGRA210_MIXER_TX1_ENABLE ... TEGRA210_MIXER_TX1_ADDER_CONFIG: + case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CTRL: + return true; + default: + return false; + } +} + +static bool tegra210_mixer_volatile_reg(struct device *dev, + unsigned int reg) +{ + if (reg < TEGRA210_MIXER_RX_LIMIT) + reg = MIXER_REG_BASE(reg); + else if (reg < TEGRA210_MIXER_TX_LIMIT) + reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE; + + switch (reg) { + case TEGRA210_MIXER_RX1_SOFT_RESET: + case TEGRA210_MIXER_RX1_STATUS: + + case TEGRA210_MIXER_TX1_SOFT_RESET: + case TEGRA210_MIXER_TX1_STATUS: + case TEGRA210_MIXER_TX1_INT_STATUS: + case TEGRA210_MIXER_TX1_INT_SET: + + case TEGRA210_MIXER_SOFT_RESET: + case TEGRA210_MIXER_STATUS: + case TEGRA210_MIXER_INT_STATUS: + case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL: + case TEGRA210_MIXER_GAIN_CFG_RAM_DATA: + case TEGRA210_MIXER_PEAKM_RAM_CTRL: + case TEGRA210_MIXER_PEAKM_RAM_DATA: + return true; + default: + return false; + } +} + +static bool tegra210_mixer_precious_reg(struct device *dev, + unsigned int reg) +{ + switch (reg) { + case TEGRA210_MIXER_GAIN_CFG_RAM_DATA: + case TEGRA210_MIXER_PEAKM_RAM_DATA: + return true; + default: + return false; + } +} + +static const struct regmap_config tegra210_mixer_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA210_MIXER_CTRL, + .writeable_reg = tegra210_mixer_wr_reg, + .readable_reg = tegra210_mixer_rd_reg, + .volatile_reg = tegra210_mixer_volatile_reg, + .precious_reg = tegra210_mixer_precious_reg, + .reg_defaults = tegra210_mixer_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tegra210_mixer_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static const struct of_device_id tegra210_mixer_of_match[] = { + { .compatible = "nvidia,tegra210-amixer" }, + {}, +}; +MODULE_DEVICE_TABLE(of, tegra210_mixer_of_match); + +static int tegra210_mixer_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tegra210_mixer *mixer; + void __iomem *regs; + int err, i; + + mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL); + if (!mixer) + return -ENOMEM; + + dev_set_drvdata(dev, mixer); + + /* Use default gain value for all MIXER inputs */ + for (i = 0; i < TEGRA210_MIXER_RX_MAX; i++) + mixer->gain_value[i] = gain_params.gain_value; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + mixer->regmap = devm_regmap_init_mmio(dev, regs, + &tegra210_mixer_regmap_config); + if (IS_ERR(mixer->regmap)) { + dev_err(dev, "regmap init failed\n"); + return PTR_ERR(mixer->regmap); + } + + regcache_cache_only(mixer->regmap, true); + + err = devm_snd_soc_register_component(dev, &tegra210_mixer_cmpnt, + tegra210_mixer_dais, + ARRAY_SIZE(tegra210_mixer_dais)); + if (err) { + dev_err(dev, "can't register MIXER component, err: %d\n", err); + return err; + } + + pm_runtime_enable(dev); + + return 0; +} + +static int tegra210_mixer_platform_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); + + return 0; +} + +static const struct dev_pm_ops tegra210_mixer_pm_ops = { + SET_RUNTIME_PM_OPS(tegra210_mixer_runtime_suspend, + tegra210_mixer_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static struct platform_driver tegra210_mixer_driver = { + .driver = { + .name = "tegra210_mixer", + .of_match_table = tegra210_mixer_of_match, + .pm = &tegra210_mixer_pm_ops, + }, + .probe = tegra210_mixer_platform_probe, + .remove = tegra210_mixer_platform_remove, +}; +module_platform_driver(tegra210_mixer_driver); + +MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>"); +MODULE_DESCRIPTION("Tegra210 MIXER ASoC driver"); +MODULE_LICENSE("GPL v2"); |